Improvement in flaning-machines



ideaal tatea @met @hijita GEORGE H. MANSEIELD, OE CONCORD, NEW HAMPSHIRE.

Letters Patent N 102,842, dated May 10, 1870. f

IMPRovnMnNT IN PLANINq-MACHINES.

The Schedule `efeifred to in these Letters Patent and making part'of the same.

Know all men by these presents:

That I, GEORGE H. MANSFIELD, of Concord, in

Y the county of-'Merrimack'and State Of- New Hampshire', 4have invented a new and useful or improved Machine for J ointin g and Squaring the Edges of Lumber for Glue-Joints and for other purposes ;v and I do hereby declare the same to he fully described in the following specification, reference being had to the annexed drawings as forming a part of this description, in which- Figure 1 is a front view f the machine.

Figure 2 is a rear view of the machine.

a a is the frame of the machine, which should be substantiallyconstructed, to resist the vibration' of t-he operating parts.

b is the driving-pulley, which is placed onthe shaft v which is attached to the machine, fi-om which motion bolts, being elongated in the direction of the length of the cutters, to allow the necessary adjustmentv of the cutters. v

The table e is provided with grooves in its under side, which fit onto the slides f j; and the cog-wheel y, on the shaft h, matches intot-herack attached to the under side of the table, and when the machine is in motion the table is moved back and forward past the cutter-head by means of the cog-wheel g.

The lumber to hejointed is placed onv the table against the guide I, and, as the table moves forward, the piece is jointed 'whilst passing lthe cutter-head.

The guide I is also adjustable in the line with the face of the cutter-head, so as to regulate the thickness of the shaving to be cut.

On-the shaft h is also a clutch-pulley, j, (known to mechanics,) to which is connected the shipper-bar k. The pins l I, in the side of the table, when the tahie is ir"y motion, hit against the 'projecting piece m attached to the shipper-bars, and the clutchpulley reverses the motion of the table, causingfit to travel back, ready to receive and carry Pforward another piece of lumber to be jointed. The side of the tableis also provided with holes at regular distances from each other, which will receive the pins that movethe shipper-bars which are to regulatey the distance the table is to travel back and forth tor different lengths of pieces to be jointed.

It will be seen, by reference to tig. 2, that motion is communica-ted by means of the belt from -the pul-- ley d to the shaft n, from which motion, by means of belts, is communicated to the shaft 71on which is placed the clutch-pulley j, and an intermediate gearwheel, which matches into the cog-wheel that connects with .the rack that supplies motion to all parts of the machine.

' The table e can be moved Vback and forward `on the slides f `f'by means of a screw instead of a rack and pinion cog-wheel without materially affecting the operation ot' the other parts of the machine, it' desired to -use it, and with but little difference in the cost of construction.

The lever t, when raised up, will throw the clutch between the pulleys, and stop the table at any point.

Whilst thetable is coming back th'e rest of the machine will still be in motion, and, by pressing the bar tdown, it will throw the clutch into gear and give the table motion again.

This machine can be used to advantage insquaring timber, and with greater facility than with the Daniels planer, and, by means of placing a beveled piece on the table, on which to lay the piece to be jointed, any desired bevel can be made.

It Vcan also be used to cut miter joints as well' as straight and square glue-joints, and for numerous purposes of jointing and squaring lumber.

I am aware that a machine for making glue-joints is already in use, having a vcutter-head and tablev which moves on slides past the cutter-head, operated by a weight, to which is fastened a rope lor strap, at-

tached to the end of the table 'and passing over awheel, the weight extending down through the floor, the object of which is to move the table forward on which is placed the piece to be jointed, which, when jointed, the table is pulled back by hand. But these machines are very unhandy. Besides, the slides have tobe extended beyondthe machine so far as to make the machine about sixteen feet long, and take up more room than manufacturers have tospare. A machine necessary to do the same length of/work, made according to my invention, will occupy but about eight in length, and the great saving of room is an important matter to those who have occasion to use a machine of this kind.

It will -be seen' that my machine is different from all other machines used for making glue-joints, in the fact that it is self-feeding and very compact.

WhatI claim as my invention, and desire to secure by Letters Patent, is

The frame a, carrying the cutter-head c, guide I, reciprocating table e, with its stops l, in connection 

